Website Down Checker

See whether a site was up at our last check and when it last went down.

Current Status

Status
Active
Server Type
Microsoft-IIS/10.0
Page Title
瑞明门窗,高端柚木窗品牌,专注门窗20年,畅销40余国
Meta Description
瑞明门窗是中国建筑节能门窗标志性企业, 20余年专注木窗的研发与设计,开创柚木窗全新品类,重新定义木窗.旗下拥有安贝格门窗,诗丹铂豪阳光房等系列产品,官方客服电话:400-0572-990
Meta Keywords
瑞明门窗,瑞明系统门窗,门窗加盟,瑞明柚木窗,铝木门窗,铝合金门窗,铝木复合门窗,隔音门窗,节能门窗,门窗十大品牌,高端定制门窗,低碳门窗,被动窗,大落地窗,海景窗
Last Checked
just now
Last Status Change
Came back up — 46 days ago (9/21/2026)
Last Downtime
First seen down 2 months ago (9/7/2026), back up 46 days ago

Observed Changes

DateStatusServer
9/21/2026, 9:44:28 PMActiveMicrosoft-IIS/10.0
9/7/2026, 8:16:02 PMInactiveUnknown

Don't just check uptime once — watch it 24/7

This is a one-time check. Turn on monitoring and we'll watch the domains that matter to you continuously, notifying you the moment anything moves across all three signals:

Uptime monitor with 7-day uptime percentage, failed checks, average latency by region, and daily outages

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor uptime free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

About Website Uptime Monitoring

This page shows whether we could reach a website the last time we checked it. We also keep a record of when it went down and came back, so you can see whether an outage is new or has happened before. For each site we show:

  • Website availability and response status
  • Server software and configuration
  • Meta information including titles and descriptions
  • Historical uptime patterns

What this page reports

  • Last status change: When we last saw a site switch between reachable and unreachable
  • Last downtime: When a site was most recently seen down, and whether it has come back
  • Server and meta information: The server software, page title and meta tags we last observed

We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.


Disclaimer: Who.is is not affiliated with, endorsed by, or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only.